10 Mistakes You Need To Avoid As A Small Youtuber in 2019 // Avoid These 10 YouTuber Mistakes and You WILL Grow on YouTube in 2019. You want to grow on YouTube and get more subscribers but so many small youtubers forget core basics or repeat the same mistakes over and over. I have been on YouTube for nearly 7 years and I every time a review a channel for a client they will have made at least one of these mistakes.